Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference (한국윤활학회:학술대회논문집)

Korean Tribology Society (한국트라이볼로지학회)
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The Study on the Effect on Friction Characteristics of Brake Pads With $BaSO_4$ and $CaCO_3$

$BaSO_4$와 $CaCO_3$ 자동차용 Brake Pad의 마찰 특성에 미치는 영향 연구

  • Jeong Geun Joong (Advanced Material Research Team, R&D Center, Hankook Tire Co., Ltd.) ;
  • Kim Hyang Rae (Advanced Material Research Team, R&D Center, Hankook Tire Co., Ltd.) ;
  • Kim Dae Hwan (Advanced Material Research Team, R&D Center, Hankook Tire Co., Ltd.) ;
  • Song Hyun Woo (Advanced Material Research Team, R&D Center, Hankook Tire Co., Ltd.) ;
  • Choi Hyeoung Gi (Frixa Co., Ltd.)
  • 정근중 (한국타이어 중앙연구소 신소재연구팀) ;
  • 김향래 (한국타이어 중앙연구소 신소재연구팀) ;
  • 김대환 (한국타이어 중앙연구소 신소재연구팀) ;
  • 송현우 (한국타이어 중앙연구소 신소재연구팀) ;
  • 최형기
  • Published : 2004.11.01
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Abstract

The purpose of this study is to investigate the friction characteristics of brake pads according to different ratios of $BaSO_4/CaCO_3$. Four brake pads with different ratios of $BaSO_4/CaCO_3$ were manufactured. The friction characteristics of brake pads were tested using 1/5 reduced scale tester. With increasing of the amount of $BaSO_4$ density and shear strength of brake pads were increased and hardness of brake pads were decreased. In effectiveness, the friction coefficient of brake pad was higher and the stability of friction coefficient was better as the ratio of $BaSO_4$ increased. In fade test, friction coefficient of B3 sample used only $CaCO_3$ was decreased rapidly. B1 sample showed a good noise performance without noise generation. The wear resistance of samples were decreased with increasing of the ratio of $CaCO_3$.

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